WordPress Development and Performance Optimization

Paweł Potacki case studies: WordPress, Craft CMS, e-commerce, Linux and DevOps

Custom WordPress websites without unnecessary complexity

WordPress works well for websites that need flexible content management and room for further development. I build custom implementations without oversized commercial themes and unnecessary plugin overhead.

Depending on the project, I work on the front end, custom plugins, WooCommerce, API integrations, image optimization, database cleanup and server-side caching with tools such as Varnish, Cloudflare or Redis.

I also improve existing websites that have become slow, difficult to maintain or unreliable after years of changes.

Below you can find selected WordPress projects for companies, healthcare professionals, creators and online stores.

Browse Selected Projects

Varnish Cache for ISPConfig 3 with Nginx SSL, Apache, WordPress and Craft CMS

Varnish Cache for ISPConfig 3 with Nginx SSL Termination

  • Craft CMS
  • Custom Software
  • Linux, DevOps
  • WordPress

Varnish Cache integration with ISPConfig 3, Nginx SSL and Apache for WordPress and Craft CMS, with purging, Cloudflare and Brotli support.

View integration
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Full-stack developer Paweł Potacki alongside abstract floating UI dashboard blocks for US-based WordPress and DevOps projects, showcasing automated deployment checklists, performance metrics, and cloud scalability elements.

WordPress and DevOps Projects for US Clients

  • Linux, DevOps
  • WooCommerce
  • WordPress

WordPress, WooCommerce and DevOps work for US clients: development, migrations, performance tuning and external integrations.

View Project
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Full-stack developer Paweł Potacki presenting the Cool AVIF WordPress image conversion plugin architecture alongside performance optimization metrics.

Cool AVIF: Image Conversion Plugin for WordPress

  • Custom Software
  • Linux, DevOps
  • WordPress

Open-source WordPress plugin for local AVIF, WebP, HEIC and JXL image conversion with ImageMagick or GD and bulk processing.

View Plugin
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Developer Paweł Potacki presenting a luxury WooCommerce fashion store mockup on desktop and mobile devices with e-commerce performance statistics.

WooCommerce Fashion Store Built with Oxygen

  • WooCommerce
  • WordPress

WooCommerce fashion store built with Oxygen Builder, with image optimization, mobile-friendly product browsing and a cleaner checkout flow.

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Developer Paweł Potacki presenting a modern WordPress website mockup engineered for content creators and travel vloggers. The user interface on desktop and mobile showcases automated YouTube API video synchronization and a custom interactive travel map module.

WordPress with YouTube Data API for Travel Creators

  • WordPress

WordPress website for travel creators with automated video syncing through YouTube Data API v3 and a lighter approach to embedded media.

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Developer Paweł Potacki presenting a modern WordPress surveying and geomatics platform mockup with technical feature benchmarks and responsive UI layout.

WordPress Website for Surveying and Geomatics

  • WordPress

WordPress website for EWIMAR surveying and geomatics with a project portfolio, external service links, Varnish caching and Cloudflare delivery.

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Developer Paweł Potacki presenting a premium WordPress architecture website mockup on desktop and mobile devices with a native Gutenberg block layout and project gallery grids.

WordPress Website for an Architecture Studio

  • WordPress

WordPress website for an architecture studio with a custom theme, project portfolio, image optimization and server-side Varnish Cache.

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Full-stack developer Paweł Potacki presenting abstract floating UI layout mockups for a WordPress medical practice platform, showcasing clinical psychologist onboarding sections and an interactive appointment booking calendar.

WordPress Website for a Psychologist

  • WordPress

WordPress website for a psychologist with booking links, educational materials, video content and mobile-friendly improvements.

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Developer Paweł Potacki presenting a fine artist portfolio website mockup on a desktop monitor and a smartphone, highlighting a native clean layout and image galleries.

WordPress Portfolio for a Fine Artist and Visual Designer

  • WordPress

Archived WordPress portfolio for a visual artist with image galleries, video sections and content management based on Advanced Custom Fields.

View Case Study
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Tell Me About Your Project

I usually reply within 24 hours

What You Can Expect When Working with Me

A good project starts with understanding the real problem. Before I write any code, I review the requirements, look at the current setup and suggest an approach that makes sense for the business, the budget and the expected scale.

Security and stability from the beginning

I think about data protection, maintainability and failure prevention before development starts. These are part of the architecture, not fixes added later.

Performance matched to the project

I optimize the code, database and server environment according to the way the system will actually be used. This includes everyday traffic, seasonal demand and predictable spikes during campaigns or product launches.

Clear communication

I explain the technical decisions in plain language. You know what is being built, why a particular solution was chosen and what alternatives were considered.

How We Work Together

I do not treat projects as an assembly line. I work on a limited number of implementations at a time so I can stay involved in the details and make sensible technical decisions throughout the process.

1. Initial Review

You describe the project, the current problem or the planned changes. I review the requirements and usually reply within 24 hours with initial feedback, follow-up questions and an estimated scope of work.

2. Architecture and Scope

Before development starts, we define the scope and select the right tools. Depending on the project, this may include WordPress, WooCommerce, Craft CMS, PrestaShop, custom PHP development, external integrations or Linux server configuration.

3. Development and Deployment

I handle the implementation, testing, deployment and performance tuning. After launch, I can also take care of updates, monitoring, further development and server maintenance when ongoing support is needed.

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